Suggest we get this in after #37382, as it should not depend on #37380, but is needed for #37381 (I think...)

Suggest we get this in after #37382, as it should not depend on #37380, but is needed for #37381 (I think...)

It is needed by #37381. If #37382 precedes it, then an attempt to actually use geant4 10.7.4 will result in a failure due to the lack of a suitable geant4-data setup.

#37382 should probably follow #37380, #37381 and #37383 just for this reason.

Fun, no?

My point, as in #37382, is that it's possible to cherry-pick the commits adding the 10.7.4 version and missing data versions (modulo conflicts, adding back in _vers) and get these in before the revision to how these are connected up in #37380 and #37381. This reduces the train of PRs, and adding 10.7.4 on its own is a good update. O.k., still needs the list of versions in Geant4's package.py, but then there'll a single commit replacing this with the functionality added in #37380.

Otherwise this should be marked as Draft so the order in which things should be rebased/reviewed/merged is clear.

Closing, since there has been no activity in a while. Feel free to reopen at / migrate to https://github.com/spack/spack-packages if you want to continue work on this.